PROs for anatomic shoulder arthroplasty correlated with patient satisfaction

BOSTON — Results presented at the American Shoulder and Elbow Surgeons Annual Meeting showed patient-reported outcomes for anatomic shoulder arthroplasty did correlate with patient satisfaction, and the Constant-Murley score was best measure to obtain those results.

“The key points and take home from this are these patient-reported outcomes [PROs] were responsive, were related to patient satisfaction,” T. Bradley Edwards, MD, said. “Constant score and Western Ontario score were the best, but the Constant score outperformed all of them with regard to having no ceiling effect.”

Edwards and colleagues collected American Shoulder and Elbow Surgeons (ASES), Constant-Murley, Western Ontario Osteoarthritis of the Shoulder Index and Single Assessment Numeric Evaluation scores for 234 patients who underwent anatomic total shoulder arthroplasty for primary osteoarthritis (OA). They looked at these scores’ responsiveness based on effect size, standardized response measure and relative efficiency.

Researchers also measured internal validity of the scores by evaluating whether they had a floor-ceiling effect. They also correlated patient satisfaction using Spearman rho correlation.

In all, 88% of patients were satisfied with their outcomes, based on the results of the study. The value of all the PRO scores showed statistically significant improvement from preoperative to postoperative, based on the findings, and they were all responsive, to some degree.

“The ones that performed the best with this measure were the Constant, the Western Ontario score and the ASES,” Edwards said.

The Constant score was the only measure that did not demonstrate a ceiling effect, he added.

“If we look at the relative efficiency of these scores, the one that did not perform as well as the others was the Single Assessment Numeric Evaluation,” Edwards said. – by Casey Tingle

Reference:

Sciascia AD, et al. Paper #22. Presented at: American Shoulder and Elbow Surgeons Annual Meeting; Oct. 7-9, 2016; Boston.

Disclosure: Edwards is a board or committee member for ASES; is on the editorial or governing board of the Journal of Shoulder and Elbow Surgeons and Orthopedics; received publishing royalties, financial or material support from Journal of Shoulder and Elbow Surgery and Saunders/Mosby-Elsevier; is a paid consultant for Kinamed, Smith & Nephew, Tornier and Wright Medical Technology Inc.; received IP royalties from Tornier, Orthohelix Surgical Designs, Shoulder Options and Wright Medical Technology Inc.; received other financial or material support from, is a paid presenter or speaker for or received research support from Tornier and Wright Medical Technology Inc.